For the uninitiated, localization is just a fancy word for translated. So the game has been successfully translated into English (and perhaps other languages). With the game still a month and a half away from a North American release (and nine days longer for Europe), this gives the developer some time to make sure everything is perfect to ensure a trouble-free worldwide launch. Expect a review here when the game launches to see how a true Metal Gear game fairs on the PSP.